update purger for duplicate nodes
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@ -1,22 +1,45 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
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<name>Purge Duplicate Path Nodes</name>
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<id>fablabchemnitz.de.purge_duplicate_path_nodes</id>
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<label>Remove duplicate nodes from selected paths.</label>
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<param name="minUse" type="bool" gui-text="Also remove segments with length less than specified length">false</param>
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<param name="minlength" indent="6" type="float" precision="1" min="0" max="9999" gui-text="Minimum segment length">0.01</param>
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<param name="joinEnd" type="bool" gui-text="Join end nodes of each subpath if distance less or equal to">false</param>
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<param name="maxdist" indent="6" type="float" precision="1" min="0" max="9999" gui-text="Max opening">0.01</param>
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<label>Unit as defined in document (File->Document Properties).</label>
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<name>Purge Duplicate Path Nodes</name>
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<id>fablabchemnitz.de.purge_duplicate_path_nodes</id>
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<param type="notebook" name="tab">
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<page name="options" gui-text="Options">
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<label>Remove duplicate nodes from selected paths.</label>
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<param name="minUse" type="bool" gui-text="Interpolate nodes of segments with total length less than specified length">false</param>
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<param name="minlength" indent="4" type="float" precision="2" min="0" max="9999" gui-text="Minimum segment length">0.01</param>
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<param name="joinEnd" type="bool" gui-text="Close subpaths where start and end node have a distance of less than">false</param>
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<param name="maxdist" indent="4" type="float" precision="2" min="0" max="9999" gui-text="Limit">0.01</param>
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<param name="joinEndSub" type="bool" gui-text="Join end nodes of separate subpaths where distance less than">false</param>
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<param name="maxdist2" indent="4" type="float" precision="2" min="0" max="9999" gui-text="Limit">0.01</param>
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<param name="allowReverse" indent="4" type="bool" gui-text="Allow reversing direction of subpaths">true</param>
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<param name="optionJoin" indent="4" type="optiongroup" appearance="combo" gui-text="Join subpaths by">
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<option value="1">interpolating nodes</option>
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<option value="2">adding straight line segment</option>
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</param>
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<label>Unit as defined in document (File->Document Properties).</label>
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</page>
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<page name="help" gui-text="Information">
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<label xml:space="preserve">
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Originally created to clean up paths for cutters/plotters removing excessive nodes or small gaps.
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Remove duplicate nodes (with exact same coordinates will always be performed.
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To join paths, make sure that the paths to consider are already combined (subpath of the same path).
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To combine paths, select them and press Ctrl+K.
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For more information:
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https://gitlab.com/EllenWasbo/inkscape-extension-removeduplicatenodes
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</label>
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</page>
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</param>
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<effect>
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<object-type>path</object-type>
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<effects-menu>
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<submenu name="FabLab Chemnitz">
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<submenu name="Nesting/Cut Optimization"/>
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<submenu name="Nesting/Cut Optimization" />
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</submenu>
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</effects-menu>
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</effect>
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<script>
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<command location="inx" interpreter="python">purge_duplicate_path_nodes.py</command>
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</script>
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<script>
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<command location="inx" interpreter="python">purge_duplicate_path_nodes.py</command>
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</script>
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</inkscape-extension>
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@ -1,5 +1,4 @@
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#!/usr/bin/env python
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# coding=utf-8
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#!/usr/bin/env python3
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#
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# Copyright (C) 2020 Ellen Wasboe, ellen@wasbo.net
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#
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@ -7,7 +6,7 @@
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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@ -17,85 +16,360 @@
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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"""
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Remove duplicate nodes or join nodes with distance less than specified.
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Optionally join start node with end node of each subpath if distance less than specified.
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Remove duplicate nodes or interpolate nodes with distance less than specified.
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Optionally join start node with end node of each subpath if distance less than specified = close the subpath
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Optionally join separate subpaths if end nodes closer than a specified distance.
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Joining subpaths can be done either by interpolating or straight line segment.
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"""
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import inkex
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from inkex import bezier, PathElement, CubicSuperPath
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import numpy as np
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def joinTest(xdiff,ydiff,limDist,idsIncluded):
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joinFlag=False
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idJoin=-1
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dist=np.sqrt(np.add(np.power(xdiff,2),np.power(ydiff,2)))
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minDist=np.amin(dist)
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if minDist < limDist:
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joinFlag=True
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idMins=np.where(dist==minDist)
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idMin=idMins[0]
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idJoin=idsIncluded[idMin[0]]
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return [joinFlag,idJoin]
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def revSub(subPath):
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subPath=subPath[::-1]
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for i, s in enumerate(subPath):
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subPath[i]=s[::-1]
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return subPath
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def joinSub(sub1,sub2, interpOrLine):
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if interpOrLine == "1":
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#interpolate end nodes
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p1=sub1[-1][-1]
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p2=sub2[0][0]
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joinNode=[0.5*(p1[0]+p2[0]),0.5*(p1[1]+p2[1])]
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#remove end/start + input join
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sub1[-1][1]=joinNode
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sub1[-1][2]=sub2[0][2]
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sub2.pop(0)
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newsub=sub1+sub2
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return newsub
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class PurgeDuplicatePathNodes(inkex.EffectExtension):
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def add_arguments(self, pars):
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pars.add_argument("--minlength", default="0")
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pars.add_argument("--minUse", type=inkex.Boolean, default=False)
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pars.add_argument("--maxdist", default="0")
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pars.add_argument("--joinEnd", type=inkex.Boolean, default=False)
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"""Remove duplicate nodes"""
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def effect(self):
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for id, elem in self.svg.selected.items():
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minlength=float(self.options.minlength)
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maxdist=float(self.options.maxdist)
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if self.options.minUse == False:
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minlength=0
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if self.options.joinEnd == False:
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maxdist=-1
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#register which subpaths are closed
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dList=str(elem.path).upper().split(' M')
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closed=[""]
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l=0
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for sub in dList:
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if dList[l].find("Z") > -1:
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closed.append(" Z ")
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else:
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closed.append("")
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l+=1
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closed.pop(0)
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new = []
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s=0
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for sub in elem.path.to_superpath():
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new.append([sub[0]])
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i = 1
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while i <= len(sub) - 1:
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length = bezier.cspseglength(new[-1][-1], sub[i]) #curve length
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if length >= minlength:
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new[-1].append(sub[i])
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else:
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#average last node xy with this node xy and set this further node to last
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new[-1][-1][1][0]= 0.5*(new[-1][-1][1][0]+sub[i][1][0])
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new[-1][-1][1][1]= 0.5*(new[-1][-1][1][1]+sub[i][1][1])
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new[-1][-1][-1]=sub[i][-1]
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i += 1
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if maxdist > -1:
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#calculate distance between first and last node
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#if <= maxdist set closed[i] to "Z "
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last=new[-1][-1]
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length = bezier.cspseglength(new[-1][-1], sub[0])
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if length <= maxdist:
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newStartEnd=[0.5*(new[-1][-1][-1][0]+new[0][0][0][0]),0.5*(new[-1][-1][-1][1]+new[0][0][0][1])]
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new[0][0][0]=newStartEnd
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new[0][0][1]=newStartEnd
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new[-1][-1][1]=newStartEnd
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new[-1][-1][2]=newStartEnd
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closed[s]=" Z "
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s+=1
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elem.path = CubicSuperPath(new).to_path(curves_only=True)
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#reset z to the originally closed paths (z lost in cubicsuperpath)
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temppath=str(elem.path.to_absolute()).split('M ')
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temppath.pop(0)
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newPath=''
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l=0
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for sub in temppath:
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newPath=newPath+'M '+temppath[l]+closed[l]
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l+=1
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elem.path=newPath
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def add_arguments(self, pars):
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pars.add_argument("--tab", default="options")
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pars.add_argument("--minlength", default="0")
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pars.add_argument("--minUse", type=inkex.Boolean, default=False)
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pars.add_argument("--maxdist", default="0")
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pars.add_argument("--joinEnd", type=inkex.Boolean, default=False)
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pars.add_argument("--maxdist2", default="0")
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pars.add_argument("--joinEndSub", type=inkex.Boolean, default=False)
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pars.add_argument("--allowReverse", type=inkex.Boolean, default=True)
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pars.add_argument("--optionJoin", default="1")
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"""Remove duplicate nodes"""
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def effect(self):
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if not self.svg.selected:
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raise inkex.AbortExtension("Please select an object.")
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for id, elem in self.svg.selection.id_dict().items():
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minlength=float(self.options.minlength)
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maxdist=float(self.options.maxdist)
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maxdist2=float(self.options.maxdist2)
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if self.options.minUse == False:
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minlength=0
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if self.options.joinEnd == False:
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maxdist=-1
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if self.options.joinEndSub == False:
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maxdist2=-1
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pp=elem.path.to_absolute()
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#register which subpaths are closed - to reset closing after missed in to_superpath
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dList=str(pp).upper().split(' M')
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closed=[]
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l=0
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for sub in dList:
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if dList[l].find("Z") > -1:
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closed.append(" Z ")
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else:
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closed.append("")
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l+=1
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new = []
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nSub=len(closed)
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xStart=np.zeros(nSub)#x start - prepare for joining subpaths
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yStart=np.copy(xStart)
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xEnd=np.copy(xStart)
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yEnd=np.copy(xStart)
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s=0
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for sub in pp.to_superpath():
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new.append([sub[0]])
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if maxdist2 > -1:
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xStart[s]=sub[0][0][0]
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yStart[s]=sub[0][0][1]
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xEnd[s]=sub[-1][-1][0]
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yEnd[s]=sub[-1][-1][1]
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#remove segment if segment length is less than minimum set, keep position
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i=1
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lastCombined=False
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while i <= len(sub) - 1:
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length = bezier.cspseglength(new[-1][-1], sub[i]) #curve length
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if length >= minlength:
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new[-1].append(sub[i])#add as is
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lastCombined=False
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else:
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#keep including segments until total length > minlength
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summedlength=length
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proceed=True
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e=0 #extra segments
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finishedAdding=False
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while proceed and i+e +1 <= len(sub) -1:
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nextlength=bezier.cspseglength(sub[i+e], sub[i+e+1]) #curve length
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if nextlength >= minlength: #don't include the next segment
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proceed=False
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if lastCombined == False and i>1: #i.e. this is a small group between long segments then average over the group, first node already added (new -1)
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new[-1][-1][1][0]= 0.5*(new[-1][-1][1][0]+sub[i+e][1][0])#change position to average
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new[-1][-1][1][1]= 0.5*(new[-1][-1][1][1]+sub[i+e][1][1])
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new[-1][-1][2]=sub[i+e][2]#change last controlpoint to that of the last node in group
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finishedAdding=True
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else: #end of group with many segments - average over all but last node (which is added separately)
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new[-1].append(sub[i])#add as is
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new[-1][-1][1][0]= 0.5*(new[-1][-1][1][0]+sub[i+e-1][1][0])#change position to average first/last
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new[-1][-1][1][1]= 0.5*(new[-1][-1][1][1]+sub[i+e-1][1][1])
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new[-1][-1][2]=sub[i+e-1][2]#change last controlpoint to that of the last node in group
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new[-1].append(sub[i+e])#add as is
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finishedAdding=True
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lastCombined=True
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else:
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summedlength=summedlength+nextlength
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if summedlength >= minlength:
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proceed=False
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e=e+1
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if finishedAdding == False:
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if i == 1:# if first segment keep position of first node, direction of last in group
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new[-1][-1][2][0]= sub[i+e][2][0]
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new[-1][-1][2][1]= sub[i+e][2][1]
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elif i + e == len(sub)-1:#if last segment included keep position of last node, direction of previous
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new[-1].append(sub[i])#add first node in group
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if e > 0 :
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new[-1].append(sub[i+e])#add last node
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new[-1][-1][0]= sub[i+1][0]#get first controlpoint from i+1
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else:
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#average position over first/last in group and keep direction (controlpoint) of first/last node
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#group within sequence of many close nodes - add new without averaging on previous
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new[-1].append(sub[i])#add first node in group
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new[-1][-1][1][0]= 0.5*(new[-1][-1][1][0]+sub[i+e][1][0])#change position to average
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new[-1][-1][1][1]= 0.5*(new[-1][-1][1][1]+sub[i+e][1][1])
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new[-1][-1][2]=sub[i+e][2]#change last controlpoint to that of the last node in group
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i=i+e
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i += 1
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if closed[s]==" Z ":
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#if new[-1][-1][1]==new[-1][-2][1]:#not always precise
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new[-1].pop(-1)#for some reason tosuperpath adds an extra node for closed paths
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#close each subpath where start/end node is closer than maxdist set (if not already closed)
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if maxdist > -1:
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if closed[s] == "": #ignore already closed paths
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#calculate distance between first and last node, if <= maxdist set closed[i] to " Z "
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#last=new[-1][-1]
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length = bezier.cspseglength(new[-1][-1], sub[0])
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if length < maxdist:
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newStartEnd=[0.5*(new[-1][-1][-1][0]+new[-1][0][0][0]),0.5*(new[-1][-1][-1][1]+new[-1][0][0][1])]
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new[-1][0][0]=newStartEnd
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new[-1][0][1]=newStartEnd
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new[-1][-1][1]=newStartEnd
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new[-1][-1][2]=newStartEnd
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closed[s]=" Z "
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s+=1
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#join different subpaths?
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closed=np.array(closed)
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openPaths=np.where(closed=='')
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closedPaths=np.where(closed==' Z ')
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if maxdist2 > -1 and openPaths[0].size > 1:
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#calculate distance between end nodes of the subpaths. If distance < maxdist2 found - join
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joinStartToEnd=np.ones(nSub, dtype=bool)
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joinEndToStart=np.copy(joinStartToEnd)
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joinEndTo=np.full(nSub,-1)
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joinEndTo[closedPaths]=2*maxdist2#set higher than maxdist2 to avoid join to closedPaths
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joinStartTo=np.copy(joinEndTo)
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#join end node of current subpath to startnode of any other or start node of current to end node of other (no reverse)
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s=0
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while s < nSub:
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#end of current to start of other
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if joinEndTo[s]==-1:
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idsTest=np.where(joinStartTo==-1)#find available start nodes
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id2Test=np.delete(idsTest[0],np.where(idsTest[0] == s))#avoid join to self
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if id2Test.size > 0:
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diff_x=np.subtract(xStart[id2Test],xEnd[s])#calculate distances in x direction
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diff_y=np.subtract(yStart[id2Test],yEnd[s])#calculate distances in y direction
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res=joinTest(diff_x,diff_y,maxdist2,id2Test)#find shortest distance if less than minimum
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if res[0] == True:#if match found flag end of this with id of other and flag start of match to end of this
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joinEndTo[s]=res[1]
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joinStartTo[res[1]]=s
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#start of current to end of other
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if joinStartTo[s]==-1:
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idsTest=np.where(joinEndTo==-1)
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id2Test=np.delete(idsTest[0],np.where(idsTest[0] == s))
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if id2Test.size > 0:
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diff_x=np.subtract(xEnd[id2Test],xStart[s])
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diff_y=np.subtract(yEnd[id2Test],yStart[s])
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res=joinTest(diff_x,diff_y,maxdist2,id2Test)
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if res[0] == True:
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joinStartTo[s]=res[1]
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joinEndTo[res[1]]=s
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if self.options.allowReverse==True:
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#start to start - if match reverse (reverseSub[s]=True)
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if joinStartTo[s]==-1:
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idsTest=np.where(joinStartTo==-1)
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id2Test=np.delete(idsTest[0],np.where(idsTest[0] == s))
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if id2Test.size > 0:
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diff_x=np.subtract(xStart[id2Test],xStart[s])
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diff_y=np.subtract(yStart[id2Test],yStart[s])
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res=joinTest(diff_x,diff_y,maxdist2,id2Test)
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if res[0] == True:
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jID=res[1]
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joinStartTo[s]=jID
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joinStartTo[jID]=s
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joinStartToEnd[s]=False #false means reverse
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joinStartToEnd[jID]=False
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#end to end
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if joinEndTo[s]==-1:
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||||
idsTest=np.where(joinEndTo==-1)
|
||||
id2Test=np.delete(idsTest[0],np.where(idsTest[0] == s))
|
||||
if id2Test.size > 0:
|
||||
diff_x=np.subtract(xEnd[id2Test],xEnd[s])
|
||||
diff_y=np.subtract(yEnd[id2Test],yEnd[s])
|
||||
res=joinTest(diff_x,diff_y,maxdist2,id2Test)
|
||||
if res[0] == True:
|
||||
jID=res[1]
|
||||
joinEndTo[s]=jID
|
||||
joinEndTo[jID]=s
|
||||
joinEndToStart[s]=False
|
||||
joinEndToStart[jID]=False
|
||||
|
||||
s+=1
|
||||
|
||||
old=new
|
||||
new=[]
|
||||
s=0
|
||||
movedTo=np.arange(nSub)
|
||||
newClosed=[]
|
||||
joinEndTo[closedPaths]=-1#avoid joining to other paths if already closed
|
||||
joinStartTo[closedPaths]=-1
|
||||
|
||||
for s in range(0,nSub):
|
||||
if movedTo[s] == s:#not joined yet
|
||||
if joinEndTo[s] > -1 or joinStartTo[s] > -1:#any join scheduled
|
||||
thisSub=[]
|
||||
closedThis=""
|
||||
if joinEndTo[s] > -1:# join one by one until -1 or back to s (closed)
|
||||
jID=joinEndTo[s]
|
||||
sub1=old[s]
|
||||
sub2=old[jID]
|
||||
rev=True if joinEndToStart[s] == False else False
|
||||
sub2=revSub(sub2) if rev == True else sub2
|
||||
thisSub=joinSub(sub1,sub2,self.options.optionJoin)
|
||||
movedTo[jID]=s
|
||||
prev=s
|
||||
#continue if sub2 joined to more
|
||||
if joinEndTo[jID] > -1 and joinStartTo[jID] > -1:#already joined so both joined if continue
|
||||
proceed=1
|
||||
|
||||
while proceed == 1:
|
||||
nID=joinEndTo[jID] if joinEndTo[jID] != prev else joinStartTo[jID]
|
||||
if movedTo[nID] == s:
|
||||
closedThis=" Z "
|
||||
proceed=0
|
||||
else:
|
||||
sub2=old[nID]
|
||||
if (nID == joinEndTo[jID] and joinStartTo[nID] == jID) or (nID == joinStartTo[jID] and joinEndTo[nID] == jID):
|
||||
pass
|
||||
else:
|
||||
rev = not rev
|
||||
sub2=revSub(sub2) if rev == True else sub2
|
||||
thisSub=joinSub(thisSub,sub2,self.options.optionJoin)
|
||||
movedTo[nID]=s
|
||||
if joinEndTo[nID] > -1 and joinStartTo[nID] > -1:
|
||||
prev=jID
|
||||
jID=nID
|
||||
else:
|
||||
proceed=0
|
||||
|
||||
if joinStartTo[s] > -1 and closedThis =="":
|
||||
jID=joinStartTo[s]
|
||||
sub1=old[jID]
|
||||
rev=True if joinStartToEnd[s] == False else False
|
||||
sub1=revSub(sub1) if rev == True else sub1
|
||||
sub2=thisSub if len(thisSub) > 0 else old[s]
|
||||
thisSub=joinSub(sub1,sub2,self.options.optionJoin)
|
||||
movedTo[jID]=s
|
||||
prev=s
|
||||
#continue if sub1 joined to more
|
||||
if joinEndTo[jID] > -1 and joinStartTo[jID] > -1:
|
||||
proceed=1
|
||||
|
||||
while proceed == 1:
|
||||
nID=joinStartTo[jID] if joinStartTo[jID] != prev else joinEndTo[jID]
|
||||
if movedTo[nID] == s:
|
||||
closedThis=" Z "
|
||||
proceed=0
|
||||
else:
|
||||
sub1=old[nID]
|
||||
if (nID == joinEndTo[jID] and joinStartTo[nID] == jID) or (nID == joinStartTo[jID] and joinEndTo[nID] == jID):
|
||||
pass
|
||||
else:
|
||||
rev = not rev
|
||||
sub1=revSub(sub1) if rev == True else sub1
|
||||
thisSub=joinSub(sub1,thisSub,self.options.optionJoin)
|
||||
movedTo[nID]=s
|
||||
if joinEndTo[nID] > -1 and joinStartTo[nID] > -1:
|
||||
prev=jID
|
||||
jID=nID
|
||||
else:
|
||||
proceed=0
|
||||
|
||||
new.append(thisSub)
|
||||
newClosed.append(closedThis)
|
||||
|
||||
else:
|
||||
new.append(old[s])
|
||||
newClosed.append(closed[s])
|
||||
closed=newClosed
|
||||
|
||||
elem.path = CubicSuperPath(new).to_path(curves_only=True)
|
||||
|
||||
#reset z to the originally closed paths (z lost in cubicsuperpath)
|
||||
temppath=str(elem.path.to_absolute()).split('M ')
|
||||
temppath.pop(0)
|
||||
newPath=''
|
||||
l=0
|
||||
for sub in temppath:
|
||||
newPath=newPath+'M '+temppath[l]+closed[l]
|
||||
l+=1
|
||||
elem.path=newPath
|
||||
|
||||
if __name__ == '__main__':
|
||||
PurgeDuplicatePathNodes().run()
|
||||
|
||||
|
|
|
|||
Reference in New Issue